Merge pull request #229775 from Lukeout/patch-27

Update collect-custom-metrics-linux-telegraf.md

Author: prmerger-automator[bot]

articles/azure-monitor/essentials/collect-custom-metrics-linux-telegraf.md

@@ -12,6 +12,9 @@ ms.author: ancav
 
 This article explains how to deploy and configure the [InfluxData](https://www.influxdata.com/) Telegraf agent on a Linux virtual machine to send metrics to Azure Monitor. 
 
+> [!NOTE]
+> InfluxData Telegraf is an open source agent and not officially supported by Azure Monitor. For issues wuth the Telegraf connector, please refer to the Telegraf Github page here: [InfluxData](https://github.com/influxdata/telegraf)
+
 ## InfluxData Telegraf agent 
 
 [Telegraf](https://docs.influxdata.com/telegraf/) is a plug-in-driven agent that enables the collection of metrics from over 150 different sources. Depending on what workloads run on your VM, you can configure the agent to leverage specialized input plug-ins to collect metrics. Examples are MySQL, NGINX, and Apache. By using output plug-ins, the agent can then write to destinations that you choose. The Telegraf agent has integrated directly with the Azure Monitor custom metrics REST API. It supports an Azure Monitor output plug-in. By using this plug-in, the agent can collect workload-specific metrics on your Linux VM and submit them as custom metrics to Azure Monitor.